"In our understandable preoccupation with neo-Nazism, racism, and Islamism, Western academia and the media have perhaps lost sight of the variety of causes that can inspire acts of political violence and terrorism in the modern age, and of the causal factors and dynamic ideological processes they share. Here is a truly comprehensive encyclopaedia of contemporary extremism which is not content to list of phenomena, but probes into vital issues about why they occur, and enlists the help of some of the best human scientists to make sense of fanatical behaviour. Informative, fascinating, disturbing."Professor Roger Griffin, Oxford Brookes University

To acknowledge the prosperity of theories and methodologies concerned with extremism, I have worked closely with Dr. Miroslav Mareš. The result of this teamwork has been published in the publication "Extremism. Theories, Concepts, Forms" (Extremismus. Theorien, Konzepte, Formen) at Oldenbourg publishing house, in Munich 2011. Goal of this work was, to gain a more comprehensive understanding of the different research strategies, methods and theories within the research field on Extremism. Besides the great spectrum of research works, the publication deals with the different forms of extremism that can be found "in realita".

About this work, Roger Griffin wrote:"In our understandable preoccupation with neo-Nazism, racism, and Islamism, Western academia and the media have perhaps lost sight of the variety of causes that can inspire acts of political violence and terrorism in the modern age, and of the causal factors and dynamic ideological processes they share. Here is a truly comprehensive encyclopaedia of contemporary extremism which is not content to list of phenomena, but probes into vital issues about why they occur, and enlists the help of some of the best human scientists to make sense of fanatical behaviour. Informative, fascinating, disturbing."Professor Roger Griffin,Oxford Brookes University

Hans-Dieter Klingemann wrote:"This book deals with extremism in politics and society comprehensive and with great knowledge. It goes beyond earlier analysis of concepts and methods. Beside religious, right- and eco-extremism, it deals with islamism in detail. This book has been missed long on the german market. Astrid Bötticher and Miroslav Mareš have integrated the current state of research in exceptional way. This volume represents the state of the art. It is an excellent coursebook and reference book." Prof. Dr. Hans-Dieter Klingemann, Wissenschaftszentrum Berlin für Sozialforschung

Frank Decker wrote:Who wants to become acquainted with the field of research or wants to understand aspects of extremism, finds a valuable orientation guide.